Pedophiles do have free speech. NAMBLA still has its evil “how to groom kiddies” handbooks out, and child porn if computer generated is legal.
That’s true, they can advocate for their perversion, just can’t post pictures, communicate with children, or act on their desires. In a perfect world, we could exclude Nazis, racists, pedos, deviants, communists, and muslim terrorists from social media. Had Facebook and Twitter done that, we wouldn’t be trying to figure out how to handle the parameters of ensuring free speech on social media. But no, they had to outlaw conservative beliefs and now we have to figure out a response that fixes their fascism.